Metal jamb



l. A. BAUM METAL JAMB June 2, 1931.

original Filed sept. 12, 1927 Patented June 2, 1931 UNITED STATES ISAAC A. BAUM, OF CHICAGO, ILLINOIS METAL JAMB Original application filed September 12, 1927, Serial No. 219,096. Divided and this application ined May 17, 1930. Serial No. 453,237.

My invention relates to means for framing and trimming a wall opening, and particularly to novel metallic means adapted for cooperation with walls having plaster surfaces.

This is a division of my copending application Serial Number 219,096 filed September 12, 1927.

An object of my invention is to provide framing for openings particularly door openings, in which all wood is eliminated, and in which the means of attachment to marginal wall is simple, strong and eifect-ive.

The device contemplates the formation of a door jamb and stop of generally channel shape, together' with a. marginal flange acting as a plaster terminal. The wall elements which may be tile or masonry, cooperate with the channel and securely position the same against lateral movement.

Suitable anchors are provided which are embedded in the masonry.

The invention will be more readily understood by reference to the accompanying drawings, in which Fig. 1 is a perspective sectional view showing the device of my inventionin the formation in which it is applied, and Fig. 2 is a transverse sectional view thereof.

The frame element of my invention comprises a strip of metal which `in the form shown is bent to provide a jamb 10, a door stop 11 and side flanges 12, the flanges serving to form a channel shaped member. The flanges are extended at right angles to form a plaster terminal 13 having a rebent margin 14. Molding desired form is applied in its usual position. Secured to the inner faces of the flanges 12 by welding or otherwise, is a continuous longitudinal strip 16 having offset margins, 16a. The extended portion of the strip lies parallel with the flanges 12 and 1s provided with struck-out tongues 17 for use e in attaching metal lath 18. The strips have the important function of securely holding the amb relative to the tile or masonry wall, furnishing a longer bearing than is provided by the off-set portion 12. A still more important function is that of providing for 15 of anyv the mounting or attachment of plaster to the jamb structure through the use of metal lath or other suitable plaster-anchoring devices. Anchors 19 in the form of U-shaped sections of wire are embedded in mortar between the tiles, lthe anchors having hooks 20 which are engaged behind the offset margin 17 and thus securely hold the frame members relative to the wall. If desired, mortar indicated at 21 may be illed in behind the jamb and door stop, thus insuring a solid foundation between the metallic frame.

Obviously a similar construction can be used for defining window openings and the necessary changes may be made in the framing for use in outside walls. Such modilications and changes are considered within the scope of my invention, and I do not wish to be limited except as indicated in the appended claims.

I claim:

l. In combination a sheet metal jamb element comprising a face, an off-set portion and a marginal flange projecting angularly outward from the off-set portion and constituting a plaster terminal and ground, and wall-engaging members secured to and lying in a plane parallel to the olf-set portion of the jamb.

2. In combination a sheet metal j amb element comprising a face, off-set portions projecting rearwardly from the edges of the face and perpendicular to said face, anges projecting outwardly from the edges of the oiiset portions and constituting plaster terminals, and wall-engaging strips lying parallel to said off-set portions and projecting rearwardly alongside of a wall.

8. A door frame comprising a sheet metal j amb the sides of which are bent backwardly and outwardly to provide a continuousv constituting a plaster terminal and ground, and Wall-engaging members secured to and lying in a plane parallel t0 the oil-set p0rtion of the jamb, said members having projections struck out of the metal of the members.

In testimony whereof I have aHiXed my signature.

ISAAC A. BAUM. 

